Selyf ap Cynan [called Selyf Sarffgadau]
- David E. Thornton
Selyf ap Cynan [called Selyf Sarffgadau] (d. 613x16), king of Powys, was the son of Cynan Garwyn of Powys (c. 550–c. 600). Known later as Sarffgadau (Serpent of Battles) and as one of the three aeruetawc (‘battle leaders’) of the Britons, Selyf...